swarm/network: rewrite of peer suggestion engine, fix skipped tests (#18404)

* swarm/network: fix skipped tests related to suggestPeer

* swarm/network: rename depth to radius

* swarm/network: uncomment assertHealth and improve comments

* swarm/network: remove commented code

* swarm/network: kademlia suggestPeer algo correction

* swarm/network: kademlia suggest peer

 * simplify suggest Peer code
 * improve peer suggestion algo
 * add comments
 * kademlia testing improvements
   * assertHealth -> checkHealth (test helper)
   * testSuggestPeer -> checkSuggestPeer (test helper)
   * remove testSuggestPeerBug and TestKademliaCase

* swarm/network: kademlia suggestPeer cleanup, improved comments

* swarm/network: minor comment, discovery test default arg

(cherry picked from commit bcb2594151c849d65108dd94e54b69067d117d7d)

1 files changed, 149 insertions, 573 deletions

diff --git a/swarm/network/kademlia_test.go b/swarm/network/kademlia_test.go
index fcb277fde..8a724756b 100644
--- a/swarm/network/kademlia_test.go
+++ b/swarm/network/kademlia_test.go
@@ -17,7 +17,6 @@
 package network
 
 import (
-	"bytes"
 	"fmt"
 	"os"
 	"testing"
@@ -43,39 +42,46 @@ func testKadPeerAddr(s string) *BzzAddr {
 
 func newTestKademliaParams() *KadParams {
 	params := NewKadParams()
-	// TODO why is this 1?
-	params.MinBinSize = 1
+	params.MinBinSize = 2
 	params.NeighbourhoodSize = 2
 	return params
 }
 
-func newTestKademlia(b string) *Kademlia {
+type testKademlia struct {
+	*Kademlia
+	t *testing.T
+}
+
+func newTestKademlia(t *testing.T, b string) *testKademlia {
 	base := pot.NewAddressFromString(b)
-	return NewKademlia(base, newTestKademliaParams())
+	return &testKademlia{
+		Kademlia: NewKademlia(base, newTestKademliaParams()),
+		t:        t,
+	}
 }
 
-func newTestKadPeer(k *Kademlia, s string, lightNode bool) *Peer {
-	return NewPeer(&BzzPeer{BzzAddr: testKadPeerAddr(s), LightNode: lightNode}, k)
+func (tk *testKademlia) newTestKadPeer(s string, lightNode bool) *Peer {
+	return NewPeer(&BzzPeer{BzzAddr: testKadPeerAddr(s), LightNode: lightNode}, tk.Kademlia)
 }
 
-func On(k *Kademlia, ons ...string) {
+func (tk *testKademlia) On(ons ...string) {
 	for _, s := range ons {
-		k.On(newTestKadPeer(k, s, false))
+		tk.Kademlia.On(tk.newTestKadPeer(s, false))
 	}
 }
 
-func Off(k *Kademlia, offs ...string) {
+func (tk *testKademlia) Off(offs ...string) {
 	for _, s := range offs {
-		k.Off(newTestKadPeer(k, s, false))
+		tk.Kademlia.Off(tk.newTestKadPeer(s, false))
 	}
 }
 
-func Register(k *Kademlia, regs ...string) {
+func (tk *testKademlia) Register(regs ...string) {
 	var as []*BzzAddr
 	for _, s := range regs {
 		as = append(as, testKadPeerAddr(s))
 	}
-	err := k.Register(as...)
+	err := tk.Kademlia.Register(as...)
 	if err != nil {
 		panic(err.Error())
 	}
@@ -169,76 +175,71 @@ func TestHealthStrict(t *testing.T) {
 	// base address is all zeros
 	// no peers
 	// unhealthy (and lonely)
-	k := newTestKademlia("11111111")
-	assertHealth(t, k, false, false)
+	tk := newTestKademlia(t, "11111111")
+	tk.checkHealth(false, false)
 
 	// know one peer but not connected
 	// unhealthy
-	Register(k, "11100000")
-	log.Trace(k.String())
-	assertHealth(t, k, false, false)
+	tk.Register("11100000")
+	tk.checkHealth(false, false)
 
 	// know one peer and connected
 	// healthy
-	On(k, "11100000")
-	assertHealth(t, k, true, false)
+	tk.On("11100000")
+	tk.checkHealth(true, false)
 
 	// know two peers, only one connected
 	// unhealthy
-	Register(k, "11111100")
-	log.Trace(k.String())
-	assertHealth(t, k, false, false)
+	tk.Register("11111100")
+	tk.checkHealth(false, false)
 
 	// know two peers and connected to both
 	// healthy
-	On(k, "11111100")
-	assertHealth(t, k, true, false)
+	tk.On("11111100")
+	tk.checkHealth(true, false)
 
 	// know three peers, connected to the two deepest
 	// healthy
-	Register(k, "00000000")
-	log.Trace(k.String())
-	assertHealth(t, k, true, false)
+	tk.Register("00000000")
+	tk.checkHealth(true, false)
 
 	// know three peers, connected to all three
 	// healthy
-	On(k, "00000000")
-	assertHealth(t, k, true, false)
+	tk.On("00000000")
+	tk.checkHealth(true, false)
 
 	// add fourth peer deeper than current depth
 	// unhealthy
-	Register(k, "11110000")
-	log.Trace(k.String())
-	assertHealth(t, k, false, false)
+	tk.Register("11110000")
+	tk.checkHealth(false, false)
 
 	// connected to three deepest peers
 	// healthy
-	On(k, "11110000")
-	assertHealth(t, k, true, false)
+	tk.On("11110000")
+	tk.checkHealth(true, false)
 
 	// add additional peer in same bin as deepest peer
 	// unhealthy
-	Register(k, "11111101")
-	log.Trace(k.String())
-	assertHealth(t, k, false, false)
+	tk.Register("11111101")
+	tk.checkHealth(false, false)
 
 	// four deepest of five peers connected
 	// healthy
-	On(k, "11111101")
-	assertHealth(t, k, true, false)
+	tk.On("11111101")
+	tk.checkHealth(true, false)
 }
 
-func assertHealth(t *testing.T, k *Kademlia, expectHealthy bool, expectSaturation bool) {
-	t.Helper()
-	kid := common.Bytes2Hex(k.BaseAddr())
-	addrs := [][]byte{k.BaseAddr()}
-	k.EachAddr(nil, 255, func(addr *BzzAddr, po int) bool {
+func (tk *testKademlia) checkHealth(expectHealthy bool, expectSaturation bool) {
+	tk.t.Helper()
+	kid := common.Bytes2Hex(tk.BaseAddr())
+	addrs := [][]byte{tk.BaseAddr()}
+	tk.EachAddr(nil, 255, func(addr *BzzAddr, po int) bool {
 		addrs = append(addrs, addr.Address())
 		return true
 	})
 
-	pp := NewPeerPotMap(k.NeighbourhoodSize, addrs)
-	healthParams := k.Healthy(pp[kid])
+	pp := NewPeerPotMap(tk.NeighbourhoodSize, addrs)
+	healthParams := tk.Healthy(pp[kid])
 
 	// definition of health, all conditions but be true:
 	// - we at least know one peer
@@ -246,23 +247,23 @@ func assertHealth(t *testing.T, k *Kademlia, expectHealthy bool, expectSaturatio
 	// - we are connected to all known neighbors
 	health := healthParams.KnowNN && healthParams.ConnectNN && healthParams.CountKnowNN > 0
 	if expectHealthy != health {
-		t.Fatalf("expected kademlia health %v, is %v\n%v", expectHealthy, health, k.String())
+		tk.t.Fatalf("expected kademlia health %v, is %v\n%v", expectHealthy, health, tk.String())
 	}
 }
 
-func testSuggestPeer(k *Kademlia, expAddr string, expPo int, expWant bool) error {
-	addr, o, want := k.SuggestPeer()
-	log.Trace("suggestpeer return", "a", addr, "o", o, "want", want)
+func (tk *testKademlia) checkSuggestPeer(expAddr string, expDepth int, expChanged bool) {
+	tk.t.Helper()
+	addr, depth, changed := tk.SuggestPeer()
+	log.Trace("suggestPeer return", "addr", addr, "depth", depth, "changed", changed)
 	if binStr(addr) != expAddr {
-		return fmt.Errorf("incorrect peer address suggested. expected %v, got %v", expAddr, binStr(addr))
+		tk.t.Fatalf("incorrect peer address suggested. expected %v, got %v", expAddr, binStr(addr))
 	}
-	if o != expPo {
-		return fmt.Errorf("incorrect prox order suggested. expected %v, got %v", expPo, o)
+	if depth != expDepth {
+		tk.t.Fatalf("incorrect saturation depth suggested. expected %v, got %v", expDepth, depth)
 	}
-	if want != expWant {
-		return fmt.Errorf("expected SuggestPeer to want peers: %v", expWant)
+	if changed != expChanged {
+		tk.t.Fatalf("expected depth change = %v, got %v", expChanged, changed)
 	}
-	return nil
 }
 
 func binStr(a *BzzAddr) string {
@@ -272,609 +273,184 @@ func binStr(a *BzzAddr) string {
 	return pot.ToBin(a.Address())[:8]
 }
 
-// TODO explain why this bug occurred and how it should have been mitigated
-func TestSuggestPeerBug(t *testing.T) {
-	// 2 row gap, unsaturated proxbin, no callables -> want PO 0
-	k := newTestKademlia("00000000")
-	On(k,
-		"10000000", "11000000",
-		"01000000",
-
-		"00010000", "00011000",
-	)
-	Off(k,
-		"01000000",
-	)
-	err := testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
-}
-
 func TestSuggestPeerFindPeers(t *testing.T) {
-	t.Skip("The SuggestPeers implementation seems to have weaknesses exposed by the change in the new depth calculation. The results are no longer predictable")
-
-	testnum := 0
-	// test 0
-	// 2 row gap, unsaturated proxbin, no callables -> want PO 0
-	k := newTestKademlia("00000000")
-	On(k, "00100000")
-	err := testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
-
-	// test 1
-	// 2 row gap, saturated proxbin, no callables -> want PO 0
-	On(k, "00010000")
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk := newTestKademlia(t, "00000000")
+	tk.On("00100000")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 2
-	// 1 row gap (1 less), saturated proxbin, no callables -> want PO 1
-	On(k, "10000000")
-	err = testSuggestPeer(k, "<nil>", 1, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("00010000")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 3
-	// no gap (1 less), saturated proxbin, no callables -> do not want more
-	On(k, "01000000", "00100001")
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("10000000", "10000001")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 4
-	// oversaturated proxbin, > do not want more
-	On(k, "00100001")
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("01000000")
+	tk.Off("10000001")
+	tk.checkSuggestPeer("10000001", 0, true)
 
-	// test 5
-	// reintroduce gap, disconnected peer callable
-	Off(k, "01000000")
-	log.Trace(k.String())
-	err = testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("00100001")
+	tk.Off("01000000")
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	// test 6
 	// second time disconnected peer not callable
 	// with reasonably set Interval
-	log.Trace("foo")
-	log.Trace(k.String())
-	err = testSuggestPeer(k, "<nil>", 1, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 6
 	// on and off again, peer callable again
-	On(k, "01000000")
-	Off(k, "01000000")
-	log.Trace(k.String())
-	err = testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("01000000")
+	tk.Off("01000000")
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	// test 7
-	// new closer peer appears, it is immediately wanted
-	On(k, "01000000")
-	Register(k, "00010001")
-	err = testSuggestPeer(k, "00010001", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
-
-	// test 8
-	// PO1 disconnects
-	On(k, "00010001")
-	log.Info(k.String())
-	Off(k, "01000000")
-	log.Info(k.String())
-	// second time, gap filling
-	err = testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("01000000", "10000001")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 9
-	On(k, "01000000")
-	log.Info(k.String())
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.Register("00010001")
+	tk.checkSuggestPeer("00010001", 0, false)
 
-	// test 10
-	k.MinBinSize = 2
-	log.Info(k.String())
-	err = testSuggestPeer(k, "<nil>", 0, true)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("00010001")
+	tk.Off("01000000")
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	// test 11
-	Register(k, "01000001")
-	log.Info(k.String())
-	err = testSuggestPeer(k, "01000001", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("01000000")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 12
-	On(k, "10000001")
-	log.Trace(fmt.Sprintf("Kad:\n%v", k.String()))
-	err = testSuggestPeer(k, "<nil>", 1, true)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.Register("01000001")
+	tk.checkSuggestPeer("01000001", 0, false)
 
-	// test 13
-	On(k, "01000001")
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.On("01000001")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 14
-	k.MinBinSize = 3
-	Register(k, "10000010")
-	err = testSuggestPeer(k, "10000010", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.Register("10000010", "01000010", "00100010")
+	tk.checkSuggestPeer("<nil>", 0, false)
 
-	// test 15
-	On(k, "10000010")
-	err = testSuggestPeer(k, "<nil>", 1, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.Register("00010010")
+	tk.checkSuggestPeer("00010010", 0, false)
 
-	// test 16
-	On(k, "01000010")
-	err = testSuggestPeer(k, "<nil>", 2, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.Off("00100001")
+	tk.checkSuggestPeer("00100010", 2, true)
 
-	// test 17
-	On(k, "00100010")
-	err = testSuggestPeer(k, "<nil>", 3, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.Off("01000001")
+	tk.checkSuggestPeer("01000010", 1, true)
 
-	// test 18
-	On(k, "00010010")
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatalf("%d %v", testnum, err.Error())
-	}
-	testnum++
+	tk.checkSuggestPeer("01000001", 0, false)
+	tk.checkSuggestPeer("00100001", 0, false)
+	tk.checkSuggestPeer("<nil>", 0, false)
+
+	tk.On("01000001", "00100001")
+	tk.Register("10000100", "01000100", "00100100")
+	tk.Register("00000100", "00000101", "00000110")
+	tk.Register("00000010", "00000011", "00000001")
+
+	tk.checkSuggestPeer("00000110", 0, false)
+	tk.checkSuggestPeer("00000101", 0, false)
+	tk.checkSuggestPeer("00000100", 0, false)
+	tk.checkSuggestPeer("00000011", 0, false)
+	tk.checkSuggestPeer("00000010", 0, false)
+	tk.checkSuggestPeer("00000001", 0, false)
+	tk.checkSuggestPeer("<nil>", 0, false)
 
 }
 
 // a node should stay in the address book if it's removed from the kademlia
 func TestOffEffectingAddressBookNormalNode(t *testing.T) {
-	k := newTestKademlia("00000000")
+	tk := newTestKademlia(t, "00000000")
 	// peer added to kademlia
-	k.On(newTestKadPeer(k, "01000000", false))
+	tk.On("01000000")
 	// peer should be in the address book
-	if k.addrs.Size() != 1 {
+	if tk.addrs.Size() != 1 {
 		t.Fatal("known peer addresses should contain 1 entry")
 	}
 	// peer should be among live connections
-	if k.conns.Size() != 1 {
+	if tk.conns.Size() != 1 {
 		t.Fatal("live peers should contain 1 entry")
 	}
 	// remove peer from kademlia
-	k.Off(newTestKadPeer(k, "01000000", false))
+	tk.Off("01000000")
 	// peer should be in the address book
-	if k.addrs.Size() != 1 {
+	if tk.addrs.Size() != 1 {
 		t.Fatal("known peer addresses should contain 1 entry")
 	}
 	// peer should not be among live connections
-	if k.conns.Size() != 0 {
+	if tk.conns.Size() != 0 {
 		t.Fatal("live peers should contain 0 entry")
 	}
 }
 
 // a light node should not be in the address book
 func TestOffEffectingAddressBookLightNode(t *testing.T) {
-	k := newTestKademlia("00000000")
+	tk := newTestKademlia(t, "00000000")
 	// light node peer added to kademlia
-	k.On(newTestKadPeer(k, "01000000", true))
+	tk.Kademlia.On(tk.newTestKadPeer("01000000", true))
 	// peer should not be in the address book
-	if k.addrs.Size() != 0 {
+	if tk.addrs.Size() != 0 {
 		t.Fatal("known peer addresses should contain 0 entry")
 	}
 	// peer should be among live connections
-	if k.conns.Size() != 1 {
+	if tk.conns.Size() != 1 {
 		t.Fatal("live peers should contain 1 entry")
 	}
 	// remove peer from kademlia
-	k.Off(newTestKadPeer(k, "01000000", true))
+	tk.Kademlia.Off(tk.newTestKadPeer("01000000", true))
 	// peer should not be in the address book
-	if k.addrs.Size() != 0 {
+	if tk.addrs.Size() != 0 {
 		t.Fatal("known peer addresses should contain 0 entry")
 	}
 	// peer should not be among live connections
-	if k.conns.Size() != 0 {
+	if tk.conns.Size() != 0 {
 		t.Fatal("live peers should contain 0 entry")
 	}
 }
 
 func TestSuggestPeerRetries(t *testing.T) {
-	k := newTestKademlia("00000000")
-	k.RetryInterval = int64(300 * time.Millisecond) // cycle
-	k.MaxRetries = 50
-	k.RetryExponent = 2
+	tk := newTestKademlia(t, "00000000")
+	tk.RetryInterval = int64(300 * time.Millisecond) // cycle
+	tk.MaxRetries = 50
+	tk.RetryExponent = 2
 	sleep := func(n int) {
-		ts := k.RetryInterval
+		ts := tk.RetryInterval
 		for i := 1; i < n; i++ {
-			ts *= int64(k.RetryExponent)
+			ts *= int64(tk.RetryExponent)
 		}
 		time.Sleep(time.Duration(ts))
 	}
 
-	Register(k, "01000000")
-	On(k, "00000001", "00000010")
-	err := testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.Register("01000000")
+	tk.On("00000001", "00000010")
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("<nil>", 0, false)
 
 	sleep(1)
-	err = testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("<nil>", 0, false)
 
 	sleep(1)
-	err = testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("<nil>", 0, false)
 
 	sleep(2)
-	err = testSuggestPeer(k, "01000000", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("01000000", 0, false)
 
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
+	tk.checkSuggestPeer("<nil>", 0, false)
 
 	sleep(2)
-	err = testSuggestPeer(k, "<nil>", 0, false)
-	if err != nil {
-		t.Fatal(err.Error())
-	}
-
+	tk.checkSuggestPeer("<nil>", 0, false)
 }
 
 func TestKademliaHiveString(t *testing.T) {
-	k := newTestKademlia("00000000")
-	On(k, "01000000", "00100000")
-	Register(k, "10000000", "10000001")
-	k.MaxProxDisplay = 8
-	h := k.String()
-	expH := "\n=========================================================================\nMon Feb 27 12:10:28 UTC 2017 KΛÐΞMLIΛ hive: queen's address: 000000\npopulation: 2 (4), NeighbourhoodSize: 2, MinBinSize: 1, MaxBinSize: 4\n============ DEPTH: 0 ==========================================\n000  0                              |  2 8100 (0) 8000 (0)\n001  1 4000                         |  1 4000 (0)\n002  1 2000                         |  1 2000 (0)\n003  0                              |  0\n004  0                              |  0\n005  0                              |  0\n006  0                              |  0\n007  0                              |  0\n========================================================================="
+	tk := newTestKademlia(t, "00000000")
+	tk.On("01000000", "00100000")
+	tk.Register("10000000", "10000001")
+	tk.MaxProxDisplay = 8
+	h := tk.String()
+	expH := "\n=========================================================================\nMon Feb 27 12:10:28 UTC 2017 KΛÐΞMLIΛ hive: queen's address: 000000\npopulation: 2 (4), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4\n============ DEPTH: 0 ==========================================\n000  0                              |  2 8100 (0) 8000 (0)\n001  1 4000                         |  1 4000 (0)\n002  1 2000                         |  1 2000 (0)\n003  0                              |  0\n004  0                              |  0\n005  0                              |  0\n006  0                              |  0\n007  0                              |  0\n========================================================================="
 	if expH[104:] != h[104:] {
 		t.Fatalf("incorrect hive output. expected %v, got %v", expH, h)
 	}
 }
 
-// testKademliaCase constructs the kademlia and PeerPot map to validate
-// the SuggestPeer and Healthy methods for provided hex-encoded addresses.
-// Argument pivotAddr is the address of the kademlia.
-func testKademliaCase(t *testing.T, pivotAddr string, addrs ...string) {
-
-	t.Skip("this test relies on SuggestPeer which is now not reliable. See description in TestSuggestPeerFindPeers")
-	addr := common.Hex2Bytes(pivotAddr)
-	var byteAddrs [][]byte
-	for _, ahex := range addrs {
-		byteAddrs = append(byteAddrs, common.Hex2Bytes(ahex))
-	}
-
-	k := NewKademlia(addr, NewKadParams())
-
-	// our pivot kademlia is the last one in the array
-	for _, a := range byteAddrs {
-		if bytes.Equal(a, addr) {
-			continue
-		}
-		p := &BzzAddr{OAddr: a, UAddr: a}
-		if err := k.Register(p); err != nil {
-			t.Fatalf("a %x addr %x: %v", a, addr, err)
-		}
-	}
-
-	ppmap := NewPeerPotMap(k.NeighbourhoodSize, byteAddrs)
-
-	pp := ppmap[pivotAddr]
-
-	for {
-		a, _, _ := k.SuggestPeer()
-		if a == nil {
-			break
-		}
-		k.On(NewPeer(&BzzPeer{BzzAddr: a}, k))
-	}
-
-	h := k.Healthy(pp)
-	if !(h.ConnectNN && h.KnowNN && h.CountKnowNN > 0) {
-		t.Fatalf("not healthy: %#v\n%v", h, k.String())
-	}
-}
-
-/*
-The regression test for the following invalid kademlia edge case.
-
-Addresses used in this test are discovered as part of the simulation network
-in higher level tests for streaming. They were generated randomly.
-
-=========================================================================
-Mon Apr  9 12:18:24 UTC 2018 KΛÐΞMLIΛ hive: queen's address: 7efef1
-population: 9 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
-000  2 d7e5 ec56                    | 18 ec56 (0) d7e5 (0) d9e0 (0) c735 (0)
-001  2 18f1 3176                    | 14 18f1 (0) 10bb (0) 10d1 (0) 0421 (0)
-002  2 52aa 47cd                    | 11 52aa (0) 51d9 (0) 5161 (0) 5130 (0)
-003  1 646e                         |  1 646e (0)
-004  0                              |  3 769c (0) 76d1 (0) 7656 (0)
-============ DEPTH: 5 ==========================================
-005  1 7a48                         |  1 7a48 (0)
-006  1 7cbd                         |  1 7cbd (0)
-007  0                              |  0
-008  0                              |  0
-009  0                              |  0
-010  0                              |  0
-011  0                              |  0
-012  0                              |  0
-013  0                              |  0
-014  0                              |  0
-015  0                              |  0
-=========================================================================
-*/
-func TestKademliaCase1(t *testing.T) {
-	testKademliaCase(t,
-		"7efef1c41d77f843ad167be95f6660567eb8a4a59f39240000cce2e0d65baf8e",
-		"ec560e6a4806aa37f147ee83687f3cf044d9953e61eedb8c34b6d50d9e2c5623",
-		"646e9540c84f6a2f9cf6585d45a4c219573b4fd1b64a3c9a1386fc5cf98c0d4d",
-		"18f13c5fba653781019025ab10e8d2fdc916d6448729268afe9e928ffcdbb8e8",
-		"317617acf99b4ffddda8a736f8fc6c6ede0bf690bc23d834123823e6d03e2f69",
-		"d7e52d9647a5d1c27a68c3ee65d543be3947ae4b68537b236d71ef9cb15fb9ab",
-		"7a48f75f8ca60487ae42d6f92b785581b40b91f2da551ae73d5eae46640e02e8",
-		"7cbd42350bde8e18ae5b955b5450f8e2cef3419f92fbf5598160c60fd78619f0",
-		"52aa3ddec61f4d48dd505a2385403c634f6ad06ee1d99c5c90a5ba6006f9af9c",
-		"47cdb6fa93eeb8bc91a417ff4e3b14a9c2ea85137462e2f575fae97f0c4be60d",
-		"5161943eb42e2a03e715fe8afa1009ff5200060c870ead6ab103f63f26cb107f",
-		"a38eaa1255f76bf883ca0830c86e8c4bb7eed259a8348aae9b03f21f90105bee",
-		"b2522bdf1ab26f324e75424fdf6e493b47e8a27687fe76347607b344fc010075",
-		"5bd7213964efb2580b91d02ac31ef126838abeba342f5dbdbe8d4d03562671a2",
-		"0b531adb82744768b694d7f94f73d4f0c9de591266108daeb8c74066bfc9c9ca",
-		"28501f59f70e888d399570145ed884353e017443c675aa12731ada7c87ea14f7",
-		"4a45f1fc63e1a9cb9dfa44c98da2f3d20c2923e5d75ff60b2db9d1bdb0c54d51",
-		"b193431ee35cd32de95805e7c1c749450c47486595aae7195ea6b6019a64fd61",
-		"baebf36a1e35a7ed834e1c72faf44ba16c159fa47d3289ceb3ca35fefa8739b5",
-		"a3659bd32e05fa36c8d20dbaaed8362bf1a8a7bd116aed62d8a43a2efbdf513f",
-		"10d1b50881a4770ebebdd0a75589dabb931e6716747b0f65fd6b080b88c4fdb6",
-		"3c76b8ca5c7ce6a03320646826213f59229626bf5b9d25da0c3ec0662dcb8ff3",
-		"4d72a04ddeb851a68cd197ef9a92a3e2ff01fbbff638e64929dd1a9c2e150112",
-		"c7353d320987956075b5bc1668571c7a36c800d5598fdc4832ec6569561e15d1",
-		"d9e0c7c90878c20ab7639d5954756f54775404b3483407fe1b483635182734f6",
-		"8fca67216b7939c0824fb06c5279901a94da41da9482b000f56df9906736ee75",
-		"460719d7f7aa7d7438f0eaf30333484fa3bd0f233632c10ba89e6e46dd3604be",
-		"0421d92c8a1c79ed5d01305a3d25aaf22a8f5f9e3d4bc80da47ee16ce20465fe",
-		"3441d9d9c0f05820a1bb6459fc7d8ef266a1bd929e7db939a10f544efe8261ea",
-		"ab198a66c293586746758468c610e5d3914d4ce629147eff6dd55a31f863ff8f",
-		"3a1c8c16b0763f3d2c35269f454ff779d1255e954d2deaf6c040fb3f0bcdc945",
-		"5561c0ea3b203e173b11e6aa9d0e621a4e10b1d8b178b8fe375220806557b823",
-		"7656caccdc79cd8d7ce66d415cc96a718e8271c62fb35746bfc2b49faf3eebf3",
-		"5130594fd54c1652cf2debde2c4204573ed76555d1e26757fe345b409af1544a",
-		"76d1e83c71ca246d042e37ff1db181f2776265fbcfdc890ce230bfa617c9c2f0",
-		"89580231962624c53968c1b0095b4a2732b2a2640a19fdd7d21fd064fcc0a5ef",
-		"3d10d001fff44680c7417dd66ecf2e984f0baa20a9bbcea348583ba5ff210c4f",
-		"43754e323f0f3a1155b1852bd6edd55da86b8c4cfe3df8b33733fca50fc202b8",
-		"a9e7b1bb763ae6452ddcacd174993f82977d81a85206bb2ae3c842e2d8e19b4c",
-		"10bb07da7bc7c7757f74149eff167d528a94a253cdc694a863f4d50054c00b6d",
-		"28f0bc1b44658548d6e05dd16d4c2fe77f1da5d48b6774bc4263b045725d0c19",
-		"835fbbf1d16ba7347b6e2fc552d6e982148d29c624ea20383850df3c810fa8fc",
-		"8e236c56a77d7f46e41e80f7092b1a68cd8e92f6156365f41813ad1ca2c6b6f3",
-		"51d9c857e9238c49186e37b4eccf17a82de3d5739f026f6043798ab531456e73",
-		"bbddf7db6a682225301f36a9fd5b0d0121d2951753e1681295f3465352ad511f",
-		"2690a910c33ee37b91eb6c4e0731d1d345e2dc3b46d308503a6e85bbc242c69e",
-		"769ce86aa90b518b7ed382f9fdacfbed93574e18dc98fe6c342e4f9f409c2d5a",
-		"ba3bebec689ce51d3e12776c45f80d25164fdfb694a8122d908081aaa2e7122c",
-		"3a51f4146ea90a815d0d283d1ceb20b928d8b4d45875e892696986a3c0d8fb9b",
-		"81968a2d8fb39114342ee1da85254ec51e0608d7f0f6997c2a8354c260a71009",
-	)
-}
-
-/*
-The regression test for the following invalid kademlia edge case.
-
-Addresses used in this test are discovered as part of the simulation network
-in higher level tests for streaming. They were generated randomly.
-
-=========================================================================
-Mon Apr  9 18:43:48 UTC 2018 KΛÐΞMLIΛ hive: queen's address: bc7f3b
-population: 9 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
-000  2 0f49 67ff                    | 28 0f49 (0) 0211 (0) 07b2 (0) 0703 (0)
-001  2 e84b f3a4                    | 13 f3a4 (0) e84b (0) e58b (0) e60b (0)
-002  1 8dba                         |  1 8dba (0)
-003  2 a008 ad72                    |  2 ad72 (0) a008 (0)
-004  0                              |  3 b61f (0) b27f (0) b027 (0)
-============ DEPTH: 5 ==========================================
-005  1 ba19                         |  1 ba19 (0)
-006  0                              |  0
-007  1 bdd6                         |  1 bdd6 (0)
-008  0                              |  0
-009  0                              |  0
-010  0                              |  0
-011  0                              |  0
-012  0                              |  0
-013  0                              |  0
-014  0                              |  0
-015  0                              |  0
-=========================================================================
-*/
-func TestKademliaCase2(t *testing.T) {
-	testKademliaCase(t,
-		"bc7f3b6a4a7e3c91b100ca6680b6c06ff407972b88956324ca853295893e0237", "67ffb61d3aa27449d277016188f35f19e2321fbda5008c68cf6303faa080534f", "600cd54c842eadac1729c04abfc369bc244572ca76117105b9dd910283b82730", "d955a05409650de151218557425105a8aa2867bb6a0e0462fa1cf90abcf87ad6", "7a6b726de45abdf7bb3e5fd9fb0dc8932270ca4dedef92238c80c05bcdb570e3", "263e99424ebfdb652adb4e3dcd27d59e11bb7ae1c057b3ef6f390d0228006254", "ba195d1a53aafde68e661c64d39db8c2a73505bf336125c15c3560de3b48b7ed", "3458c762169937115f67cabc35a6c384ed70293a8aec37b077a6c1b8e02d510e", "4ef4dc2e28ac6efdba57e134ac24dd4e0be68b9d54f7006515eb9509105f700c", "2a8782b79b0c24b9714dfd2c8ff1932bebc08aa6520b4eaeaa59ff781238890c", "625d02e960506f4524e9cdeac85b33faf3ea437fceadbd478b62b78720cf24fc", "e051a36a8c8637f520ba259c9ed3fadaf740dadc6a04c3f0e21778ebd4cd6ac4", "e34bc014fa2504f707bb3d904872b56c2fa250bee3cb19a147a0418541f1bd90", "28036dc79add95799916893890add5d8972f3b95325a509d6ded3d448f4dc652", "1b013c407794fa2e4c955d8f51cbc6bd78588a174b6548246b291281304b5409", "34f71b68698e1534095ff23ee9c35bf64c7f12b8463e7c6f6b19c25cf03928b4", "c712c6e9bbb7076832972a95890e340b94ed735935c3c0bb788e61f011b59479", "a008d5becdcda4b9dbfdaafc3cec586cf61dcf2d4b713b6168fff02e3b9f0b08", "29de15555cdbebaab214009e416ee92f947dcec5dab9894129f50f1b17138f34", "5df9449f700bd4b5a23688b68b293f2e92fa6ca524c93bc6bb9936efba9d9ada", "3ab0168a5f87fedc6a39b53c628256ac87a98670d8691bbdaaecec22418d13a2", "1ee299b2d2a74a568494130e6869e66d57982d345c482a0e0eeb285ac219ae3b", "e0e0e3b860cea9b7a74cf1b0675cc632dc64e80a02f20bbc5e96e2e8bb670606", "dc1ba6f169b0fcdcca021dcebaf39fe5d4875e7e69b854fad65687c1d7719ec0", "d321f73e42fcfb1d3a303eddf018ca5dffdcfd5567cd5ec1212f045f6a07e47d", "070320c3da7b542e5ca8aaf6a0a53d2bb5113ed264ab1db2dceee17c729edcb1", "17d314d65fdd136b50d182d2c8f5edf16e7838c2be8cf2c00abe4b406dbcd1d8", "e60b99e0a06f7d2d99d84085f67cdf8cc22a9ae22c339365d80f90289834a2b4", "02115771e18932e1f67a45f11f5bf743c5dae97fbc477d34d35c996012420eac", "3102a40eb2e5060353dd19bf61eeec8782dd1bebfcb57f4c796912252b591827", "8dbaf231062f2dc7ddaba5f9c7761b0c21292be51bf8c2ef503f31d4a2f63f79", "b02787b713c83a9f9183216310f04251994e04c2763a9024731562e8978e7cc4", "b27fe6cd33989e10909ce794c4b0b88feae286b614a59d49a3444c1a7b51ea82", "07b2d2c94fdc6fd148fe23be2ed9eff54f5e12548f29ed8416e6860fc894466f", "e58bf9f451ef62ac44ff0a9bb0610ec0fd14d423235954f0d3695e83017cbfc4", "bdd600b91bb79d1ee0053b854de308cfaa7e2abce575ea6815a0a7b3449609c2", "0f49c93c1edc7999920b21977cedd51a763940dac32e319feb9c1df2da0f3071", "7cbf0297cd41acf655cd6f960d7aaf61479edb4189d5c001cbc730861f0deb41", "79265193778d87ad626a5f59397bc075872d7302a12634ce2451a767d0a82da2", "2fe7d705f7c370b9243dbaafe007d555ff58d218822fca49d347b12a0282457c", "e84bc0c83d05e55a0080eed41dda5a795da4b9313a4da697142e69a65834cbb3", "cc4d278bd9aa0e9fb3cd8d2e0d68fb791aab5de4b120b845c409effbed47a180", "1a2317a8646cd4b6d3c4aa4cc25f676533abb689cf180787db216880a1239ad8", "cbafd6568cf8e99076208e6b6843f5808a7087897c67aad0c54694669398f889", "7b7c8357255fc37b4dae0e1af61589035fd39ff627e0938c6b3da8b4e4ec5d23", "2b8d782c1f5bac46c922cf439f6aa79f91e9ba5ffc0020d58455188a2075b334", "b61f45af2306705740742e76197a119235584ced01ef3f7cf3d4370f6c557cd1", "2775612e7cdae2780bf494c370bdcbe69c55e4a1363b1dc79ea0135e61221cce", "f3a49bb22f40885e961299abfa697a7df690a79f067bf3a4847a3ad48d826c9f", "ad724ac218dc133c0aadf4618eae21fdd0c2f3787af279846b49e2b4f97ff167",
-	)
-}
-
-/*
-The regression test for the following invalid kademlia edge case.
-
-Addresses used in this test are discovered as part of the simulation network
-in higher level tests for streaming. They were generated randomly.
-
-=========================================================================
-Mon Apr  9 19:04:35 UTC 2018 KΛÐΞMLIΛ hive: queen's address: b4822e
-population: 8 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
-000  2 786c 774b                    | 29 774b (0) 786c (0) 7a79 (0) 7d2f (0)
-001  2 d9de cf19                    | 10 cf19 (0) d9de (0) d2ff (0) d2a2 (0)
-002  2 8ca1 8d74                    |  5 8d74 (0) 8ca1 (0) 9793 (0) 9f51 (0)
-003  0                              |  0
-004  0                              |  3 bfac (0) bcbb (0) bde9 (0)
-005  0                              |  0
-============ DEPTH: 6 ==========================================
-006  1 b660                         |  1 b660 (0)
-007  0                              |  0
-008  1 b450                         |  1 b450 (0)
-009  0                              |  0
-010  0                              |  0
-011  0                              |  0
-012  0                              |  0
-013  0                              |  0
-014  0                              |  0
-015  0                              |  0
-=========================================================================
-*/
-func TestKademliaCase3(t *testing.T) {
-	testKademliaCase(t,
-		"b4822e874a01b94ac3a35c821e6db131e785c2fcbb3556e84b36102caf09b091", "2ecf54ea38d58f9cfc3862e54e5854a7c506fbc640e0b38e46d7d45a19794999", "442374092be50fc7392e8dd3f6fab3158ff7f14f26ff98060aed9b2eecf0b97d", "b450a4a67fcfa3b976cf023d8f1f15052b727f712198ce901630efe2f95db191", "9a7291638eb1c989a6dd6661a42c735b23ac6605b5d3e428aa5ffe650e892c85", "67f62eeab9804cfcac02b25ebeab9113d1b9d03dd5200b1c5a324cc0163e722f", "2e4a0e4b53bca4a9d7e2734150e9f579f29a255ade18a268461b20d026c9ee90", "30dd79c5fcdaa1b106f6960c45c9fde7c046aa3d931088d98c52ab759d0b2ac4", "97936fb5a581e59753c54fa5feec493714f2218245f61f97a62eafd4699433e4", "3a2899b6e129e3e193f6e2aefb82589c948c246d2ec1d4272af32ef3b2660f44", "f0e2a8aa88e67269e9952431ef12e5b29b7f41a1871fbfc38567fad95655d607", "7fa12b3f3c5f8383bfc644b958f72a486969733fa097d8952b3eb4f7b4f73192", "360c167aad5fc992656d6010ec45fdce5bcd492ad9608bc515e2be70d4e430c1", "fe21bc969b3d8e5a64a6484a829c1e04208f26f3cd4de6afcbc172a5bd17f1f1", "b660a1f40141d7ccd282fe5bd9838744119bd1cb3780498b5173578cc5ad308f", "44dcb3370e76680e2fba8cd986ad45ff0b77ca45680ee8d950e47922c4af6226", "8ca126923d17fccb689647307b89f38aa14e2a7b9ebcf3c1e31ccf3d2291a3bc", "f0ae19ae9ce6329327cbf42baf090e084c196b0877d8c7b69997e0123be23ef8", "d2a2a217385158e3e1e348883a14bc423e57daa12077e8c49797d16121ea0810", "f5467ccd85bb4ebe768527db520a210459969a5f1fae6e07b43f519799f0b224", "68be5fd9f9d142a5099e3609011fe3bab7bb992c595999e31e0b3d1668dfb3cf", "4d49a8a476e4934afc6b5c36db9bece3ed1804f20b952da5a21b2b0de766aa73", "ea7155745ef3fb2d099513887a2ba279333ced65c65facbd890ce58bd3fce772", "cf19f51f4e848053d289ac95a9138cdd23fc3077ae913cd58cda8cc7a521b2e1", "590b1cd41c7e6144e76b5cd515a3a4d0a4317624620a3f1685f43ae68bdcd890", "d2ffe0626b5f94a7e00fa0b506e7455a3d9399c15800db108d5e715ef5f6e346", "69630878c50a91f6c2edd23a706bfa0b50bd5661672a37d67bab38e6bca3b698", "445e9067079899bb5faafaca915ae6c0f6b1b730a5a628835dd827636f7feb1e", "6461c77491f1c4825958949f23c153e6e1759a5be53abbcee17c9da3867f3141", "23a235f4083771ccc207771daceda700b525a59ab586788d4f6892e69e34a6e2", "bde99f79ef41a81607ddcf92b9f95dcbc6c3537e91e8bf740e193dc73b19485e", "177957c0e5f0fbd12b88022a91768095d193830986caec8d888097d3ff4310b8", "bcbbdbaa4cdf8352422072f332e05111b732354a35c4d7c617ce1fc3b8b42a5a", "774b6717fdfb0d1629fb9d4c04a9ca40079ae2955d7f82e897477055ed017abb", "16443bf625be6d39ecaa6f114e5d2c1d47a64bfd3c13808d94b55b6b6acef2ee", "8d7495d9008066505ed00ce8198af82bfa5a6b4c08768b4c9fb3aa4eb0b0cca2", "15800849a53349508cb382959527f6c3cf1a46158ff1e6e2316b7dea7967e35f", "7a792f0f4a2b731781d1b244b2a57947f1a2e32900a1c0793449f9f7ae18a7b7", "5e517c2832c9deaa7df77c7bad4d20fd6eda2b7815e155e68bc48238fac1416f", "9f51a14f0019c72bd1d472706d8c80a18c1873c6a0663e754b60eae8094483d7", "7d2fabb565122521d22ba99fed9e5be6a458fbc93156d54db27d97a00b8c3a97", "786c9e412a7db4ec278891fa534caa9a1d1a028c631c6f3aeb9c4d96ad895c36", "3bd6341d40641c2632a5a0cd7a63553a04e251efd7195897a1d27e02a7a8bfde", "31efd1f5fb57b8cff0318d77a1a9e8d67e1d1c8d18ce90f99c3a240dff48cdc8", "d9de3e1156ce1380150948acbcfecd99c96e7f4b0bc97745f4681593d017f74f", "427a2201e09f9583cd990c03b81b58148c297d474a3b50f498d83b1c7a9414cd", "bfaca11596d3dec406a9fcf5d97536516dfe7f0e3b12078428a7e1700e25218a", "351c4770a097248a650008152d0cab5825d048bef770da7f3364f59d1e721bc0", "ee00f205d1486b2be7381d962bd2867263758e880529e4e2bfedfa613bbc0e71", "6aa3b6418d89e3348e4859c823ef4d6d7cd46aa7f7e77aba586c4214d760d8f8",
-	)
-}
-
-/*
-The regression test for the following invalid kademlia edge case.
-
-Addresses used in this test are discovered as part of the simulation network
-in higher level tests for streaming. They were generated randomly.
-
-=========================================================================
-Mon Apr  9 19:16:25 UTC 2018 KΛÐΞMLIΛ hive: queen's address: 9a90fe
-population: 8 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
-000  2 72ef 4e6c                    | 24 0b1e (0) 0d66 (0) 17f5 (0) 17e8 (0)
-001  2 fc2b fa47                    | 13 fa47 (0) fc2b (0) fffd (0) ecef (0)
-002  2 b847 afa8                    |  6 afa8 (0) ad77 (0) bb7c (0) b847 (0)
-003  0                              |  0
-004  0                              |  4 91fc (0) 957d (0) 9482 (0) 949a (0)
-============ DEPTH: 5 ==========================================
-005  1 9ccf                         |  1 9ccf (0)
-006  0                              |  0
-007  1 9bb2                         |  1 9bb2 (0)
-008  0                              |  0
-009  0                              |  0
-010  0                              |  0
-011  0                              |  0
-012  0                              |  0
-013  0                              |  0
-014  0                              |  0
-015  0                              |  0
-=========================================================================
-*/
-func TestKademliaCase4(t *testing.T) {
-	testKademliaCase(t,
-		"9a90fe3506277244549064b8c3276abb06284a199d9063a97331947f2b7da7f4",
-		"c19359eddef24b7be1a833b4475f212cd944263627a53f9ef4837d106c247730", "fc2b6fef99ef947f7e57c3df376891769e2a2fd83d2b8e634e0fc1e91eaa080c", "ecefc0e1a8ea7bb4b48c469e077401fce175dd75294255b96c4e54f6a2950a55", "bb7ce598efc056bba343cc2614aa3f67a575557561290b44c73a63f8f433f9f7", "55fbee6ca52dfd7f0be0db969ee8e524b654ab4f0cce7c05d83887d7d2a15460", "afa852b6b319998c6a283cc0c82d2f5b8e9410075d7700f3012761f1cfbd0f76", "36c370cfb63f2087971ba6e58d7585b04e16b8f0da335efb91554c2dd8fe191c", "6be41e029985edebc901fb77fc4fb65516b6d85086e2a98bfa3159c99391e585", "dd3cfc72ea553e7d2b28f0037a65646b30955b929d29ba4c40f4a2a811248e77", "da3a8f18e09c7b0ca235c4e33e1441a5188f1df023138bf207753ee63e768f7d", "de9e3ab4dc572d54a2d4b878329fd832bb51a149f4ce167316eeb177b61e7e01", "4e6c1ecde6ed917706257fe020a1d02d2e9d87fca4c85f0f7b132491008c5032", "72ef04b77a070e13463b3529dd312bcacfb7a12d20dc597f5ec3de0501e9b834", "3fef57186675d524ab8bb1f54ba8cb68610babca1247c0c46dbb60aed003c69d", "1d8e6b71f7a052865d6558d4ba44ad5fab7b908cc1badf5766822e1c20d0d823", "6be2f2b4ffa173014d4ec7df157d289744a2bda54bb876b264ccfa898a0da315", "b0ba3fff8643f9985c744327b0c4c869763509fd5da2de9a80a4a0a082021255", "9ccf40b9406ba2e6567101fb9b4e5334a9ec74263eff47267da266ba45e6c158", "d7347f02c180a448e60f73931845062ce00048750b584790278e9c93ef31ad81", "b68c6359a22b3bee6fecb8804311cfd816648ea31d530c9fb48e477e029d707a", "0d668a18ad7c2820214df6df95a6c855ce19fb1cb765f8ca620e45db76686d37", "3fbd2663bff65533246f1fabb9f38086854c6218aeb3dc9ac6ac73d4f0988f91", "949aa5719ca846052bfaa1b38c97b6eca3df3e24c0e0630042c6bccafbb4cdb5", "77b8a2b917bef5d54f3792183b014cca7798f713ff14fe0b2ac79b4c9f6f996d", "17e853cbd8dc00cba3cd9ffeb36f26a9f41a0eb92f80b62c2cda16771c935388", "5f682ed7a8cf2f98387c3def7c97f9f05ae39e39d393eeca3cf621268d6347f8", "ad77487eaf11fd8084ba4517a51766eb0e5b77dd3492dfa79aa3a2802fb29d20", "d247cfcacf9a8200ebaddf639f8c926ab0a001abe682f40df3785e80ed124e91", "195589442e11907eede1ee6524157f1125f68399f3170c835ff81c603b069f6c", "5b5ca0a67f3c54e7d3a6a862ef56168ec9ed1f4945e6c24de6d336b2be2e6f8c", "56430e4caa253015f1f998dce4a48a88af1953f68e94eca14f53074ae9c3e467", "0b1eed6a5bf612d1d8e08f5c546f3d12e838568fd3aa43ed4c537f10c65545d6", "7058db19a56dfff01988ac4a62e1310597f9c8d7ebde6890dadabf047d722d39", "b847380d6888ff7cd11402d086b19eccc40950b52c9d67e73cb4f8462f5df078", "df6c048419a2290ab546d527e9eeba349e7f7e1759bafe4adac507ce60ef9670", "91fc5b4b24fc3fbfea7f9a3d0f0437cb5733c0c2345d8bdffd7048d6e3b8a37b", "957d8ea51b37523952b6f5ae95462fcd4aed1483ef32cc80b69580aaeee03606", "efa82e4e91ad9ab781977400e9ac0bb9de7389aaedebdae979b73d1d3b8d72b0", "7400c9f3f3fc0cc6fe8cc37ab24b9771f44e9f78be913f73cd35fc4be030d6bd", "9bb28f4122d61f7bb56fe27ef706159fb802fef0f5de9dfa32c9c5b3183235f1", "40a8de6e98953498b806614532ea4abf8b99ad7f9719fb68203a6eae2efa5b2a", "412de0b218b8f7dcacc9205cd16ffb4eca5b838f46a2f4f9f534026061a47308", "17f56ecad51075080680ad9faa0fd8946b824d3296ddb20be07f9809fe8d1c5a", "fffd4e7ae885a41948a342b6647955a7ec8a8039039f510cff467ef597675457", "35e78e11b5ac46a29dd04ab0043136c3291f4ca56cb949ace33111ed56395463", "94824fc80230af82077c83bfc01dc9675b1f9d3d538b1e5f41c21ac753598691", "fa470ae314ca3fce493f21b423eef2a49522e09126f6f2326fa3c9cac0b344f7", "7078860b5b621b21ac7b95f9fc4739c8235ce5066a8b9bd7d938146a34fa88ec", "eea53560f0428bfd2eca4f86a5ce9dec5ff1309129a975d73465c1c9e9da71d1",
-	)
-}
-
-/*
-The regression test for the following invalid kademlia edge case.
-
-Addresses used in this test are discovered as part of the simulation network
-in higher level tests for streaming. They were generated randomly.
-
-=========================================================================
-Mon Apr  9 19:25:18 UTC 2018 KΛÐΞMLIΛ hive: queen's address: 5dd5c7
-population: 13 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
-000  2 e528 fad0                    | 22 fad0 (0) e528 (0) e3bb (0) ed13 (0)
-001  3 3f30 18e0 1dd3               |  7 3f30 (0) 23db (0) 10b6 (0) 18e0 (0)
-002  4 7c54 7804 61e4 60f9          | 10 61e4 (0) 60f9 (0) 636c (0) 7186 (0)
-003  2 40ae 4bae                    |  5 4bae (0) 4d5c (0) 403a (0) 40ae (0)
-004  0                              |  0
-005  0                              |  3 5808 (0) 5a0e (0) 5bdb (0)
-============ DEPTH: 6 ==========================================
-006  2 5f14 5f61                    |  2 5f14 (0) 5f61 (0)
-007  0                              |  0
-008  0                              |  0
-009  0                              |  0
-010  0                              |  0
-011  0                              |  0
-012  0                              |  0
-013  0                              |  0
-014  0                              |  0
-015  0                              |  0
-=========================================================================
-*/
-func TestKademliaCase5(t *testing.T) {
-	testKademliaCase(t,
-		"5dd5c77dd9006a800478fcebb02d48d4036389e7d3c8f6a83b97dbad13f4c0a9",
-		"78fafa0809929a1279ece089a51d12457c2d8416dff859aeb2ccc24bb50df5ec", "1dd39b1257e745f147cbbc3cadd609ccd6207c41056dbc4254bba5d2527d3ee5", "5f61dd66d4d94aec8fcc3ce0e7885c7edf30c43143fa730e2841c5d28e3cd081", "8aa8b0472cb351d967e575ad05c4b9f393e76c4b01ef4b3a54aac5283b78abc9", "4502f385152a915b438a6726ce3ea9342e7a6db91a23c2f6bee83a885ed7eb82", "718677a504249db47525e959ef1784bed167e1c46f1e0275b9c7b588e28a3758", "7c54c6ed1f8376323896ed3a4e048866410de189e9599dd89bf312ca4adb96b5", "18e03bd3378126c09e799a497150da5c24c895aedc84b6f0dbae41fc4bac081a", "23db76ac9e6e58d9f5395ca78252513a7b4118b4155f8462d3d5eec62486cadc", "40ae0e8f065e96c7adb7fa39505136401f01780481e678d718b7f6dbb2c906ec", "c1539998b8bae19d339d6bbb691f4e9daeb0e86847545229e80fe0dffe716e92", "ed139d73a2699e205574c08722ca9f030ad2d866c662f1112a276b91421c3cb9", "5bdb19584b7a36d09ca689422ef7e6bb681b8f2558a6b2177a8f7c812f631022", "636c9de7fe234ffc15d67a504c69702c719f626c17461d3f2918e924cd9d69e2", "de4455413ff9335c440d52458c6544191bd58a16d85f700c1de53b62773064ea", "de1963310849527acabc7885b6e345a56406a8f23e35e436b6d9725e69a79a83", "a80a50a467f561210a114cba6c7fb1489ed43a14d61a9edd70e2eb15c31f074d", "7804f12b8d8e6e4b375b242058242068a3809385e05df0e64973cde805cf729c", "60f9aa320c02c6f2e6370aa740cf7cea38083fa95fca8c99552cda52935c1520", "d8da963602390f6c002c00ce62a84b514edfce9ebde035b277a957264bb54d21", "8463d93256e026fe436abad44697152b9a56ac8e06a0583d318e9571b83d073c", "9a3f78fcefb9a05e40a23de55f6153d7a8b9d973ede43a380bf46bb3b3847de1", "e3bb576f4b3760b9ca6bff59326f4ebfc4a669d263fb7d67ab9797adea54ed13", "4d5cdbd6dcca5bdf819a0fe8d175dc55cc96f088d37462acd5ea14bc6296bdbe", "5a0ed28de7b5258c727cb85447071c74c00a5fbba9e6bc0393bc51944d04ab2a", "61e4ddb479c283c638f4edec24353b6cc7a3a13b930824aad016b0996ca93c47", "7e3610868acf714836cafaaa7b8c009a9ac6e3a6d443e5586cf661530a204ee2", "d74b244d4345d2c86e30a097105e4fb133d53c578320285132a952cdaa64416e", "cfeed57d0f935bfab89e3f630a7c97e0b1605f0724d85a008bbfb92cb47863a8", "580837af95055670e20d494978f60c7f1458dc4b9e389fc7aa4982b2aca3bce3", "df55c0c49e6c8a83d82dfa1c307d3bf6a20e18721c80d8ec4f1f68dc0a137ced", "5f149c51ce581ba32a285439a806c063ced01ccd4211cd024e6a615b8f216f95", "1eb76b00aeb127b10dd1b7cd4c3edeb4d812b5a658f0feb13e85c4d2b7c6fe06", "7a56ba7c3fb7cbfb5561a46a75d95d7722096b45771ec16e6fa7bbfab0b35dfe", "4bae85ad88c28470f0015246d530adc0cd1778bdd5145c3c6b538ee50c4e04bd", "afd1892e2a7145c99ec0ebe9ded0d3fec21089b277a68d47f45961ec5e39e7e0", "953138885d7b36b0ef79e46030f8e61fd7037fbe5ce9e0a94d728e8c8d7eab86", "de761613ef305e4f628cb6bf97d7b7dc69a9d513dc233630792de97bcda777a6", "3f3087280063d09504c084bbf7fdf984347a72b50d097fd5b086ffabb5b3fb4c", "7d18a94bb1ebfdef4d3e454d2db8cb772f30ca57920dd1e402184a9e598581a0", "a7d6fbdc9126d9f10d10617f49fb9f5474ffe1b229f76b7dd27cebba30eccb5d", "fad0246303618353d1387ec10c09ee991eb6180697ed3470ed9a6b377695203d", "1cf66e09ea51ee5c23df26615a9e7420be2ac8063f28f60a3bc86020e94fe6f3", "8269cdaa153da7c358b0b940791af74d7c651cd4d3f5ed13acfe6d0f2c539e7f", "90d52eaaa60e74bf1c79106113f2599471a902d7b1c39ac1f55b20604f453c09", "9788fd0c09190a3f3d0541f68073a2f44c2fcc45bb97558a7c319f36c25a75b3", "10b68fc44157ecfdae238ee6c1ce0333f906ad04d1a4cb1505c8e35c3c87fbb0", "e5284117fdf3757920475c786e0004cb00ba0932163659a89b36651a01e57394", "403ad51d911e113dcd5f9ff58c94f6d278886a2a4da64c3ceca2083282c92de3",
-	)
-}
-
 func newTestDiscoveryPeer(addr pot.Address, kad *Kademlia) *Peer {
 	rw := &p2p.MsgPipeRW{}
 	p := p2p.NewPeer(enode.ID{}, "foo", []p2p.Cap{})